diff --git a/examples/nft-nd-nns/tests/nonnative_name_service_test.go b/examples/nft-nd-nns/tests/nonnative_name_service_test.go
index 40840981a..ecd602786 100644
--- a/examples/nft-nd-nns/tests/nonnative_name_service_test.go
+++ b/examples/nft-nd-nns/tests/nonnative_name_service_test.go
@@ -20,10 +20,7 @@ func newNSClient(t *testing.T) *neotest.ContractInvoker {
 	c := neotest.CompileFile(t, e.CommitteeHash, "..", "../nns.yml")
 	e.DeployContract(t, c, nil)
 
-	h, err := e.Chain.GetContractScriptHash(1)
-	require.NoError(t, err)
-	require.Equal(t, c.Hash, h)
-	return e.CommitteeInvoker(h)
+	return e.CommitteeInvoker(c.Hash)
 }
 
 func TestNameService_Price(t *testing.T) {
diff --git a/pkg/neotest/basic.go b/pkg/neotest/basic.go
index 854a907e2..422c967be 100644
--- a/pkg/neotest/basic.go
+++ b/pkg/neotest/basic.go
@@ -114,13 +114,24 @@ func (e *Executor) NewAccount(t *testing.T) Signer {
 	return NewSingleSigner(acc)
 }
 
-// DeployContract compiles and deploys contract to bc.
+// DeployContract compiles and deploys contract to bc. It also checks that
+// precalculated contract hash matches the actual one.
 // data is an optional argument to `_deploy`.
 // Returns hash of the deploy transaction.
 func (e *Executor) DeployContract(t *testing.T, c *Contract, data interface{}) util.Uint256 {
 	tx := e.NewDeployTx(t, e.Chain, c, data)
 	e.AddNewBlock(t, tx)
 	e.CheckHalt(t, tx.Hash())
+
+	// Check that precalculated hash matches the real one.
+	e.CheckTxNotificationEvent(t, tx.Hash(), -1, state.NotificationEvent{
+		ScriptHash: e.NativeHash(t, nativenames.Management),
+		Name:       "Deploy",
+		Item: stackitem.NewArray([]stackitem.Item{
+			stackitem.NewByteArray(c.Hash.BytesBE()),
+		}),
+	})
+
 	return tx.Hash()
 }